Brush holder

Abstract

A brush holder comprises a holding part provided with a contact part in contact with a brush and three resilient pieces pressing the brush toward the contact part. It is possible to support the brush securely in the holding part and possible to prevent the brush from the disconnection and the occurrence of objectable noise and vibration of the motor.

What is claimed is: 
     
       1. A brush holder for supporting a brush to be in contact with a commutator, the brush having an brush body and an engaging projection which includes four side walls, said brush holder comprising: a thin metallic plate for supporting the brush, said thin metallic plate having a tetragonal opening for receiving the engaging projection of the brush, a contact portion disposed on one side of said tetragonal opening so as to be in contact with one of the four side walls of said engaging projection of the brush, and three resilient pieces protruding from the other sides of said tetragonal opening and disposed so as to press against other three side walls of the engaging projection of the brush.   
     
     
       2. The brush holder as set forth in claim 1, wherein said thin metallic plate further includes cutouts on both sides of each of said resilient pieces.